Photovoltaic-thermal module based on biochar-PCM achieves 79.6% efficiency

Indian scientists have developed a panel with an electrical efficiency of 13% and and thermal efficiency of 66.6 %. They built the system with a 100 W PV panel, a rectangular absorber, and a cooling technique based on a phase change material (PCM) that uses biochar derived from water hyacinth.Scientists led by the Indian Institute of Technology Guwahati have developed a photovoltaic-thermal (PV) module that can reportedly achieve an overall efficiency of 79.6%. "The water-based system generates hot water with sufficient temperature to be utilized for domestic usage," researcher Dudul Das told ...

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